Invention Grant
- Patent Title: Communications signals as radar using synchoronized time delays of multipath reflections
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Application No.: US17109724Application Date: 2020-12-02
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Publication No.: US11762080B2Publication Date: 2023-09-19
- Inventor: Minh Phuoc Vo , Kiran Kumar Somasundaram , Steven John Lovegrove
- Applicant: Meta Platforms Technologies, LLC
- Applicant Address: US CA Menlo Park
- Assignee: Meta Platforms Technologies, LLC
- Current Assignee: Meta Platforms Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Baker Botts L.L.P.
- Main IPC: G01S13/52
- IPC: G01S13/52 ; G01S13/04 ; G01S13/00 ; G01S13/46 ; G01S7/41 ; H04W56/00 ; H04W84/12

Abstract:
A method includes receiving a first wireless signal detected by a first device in an environment, the first wireless signal including a first distortion pattern caused by an object moving in the environment, receiving a second wireless signal detected by a second device in the environment, the second wireless signal including a second distortion pattern caused by the object moving in the environment, determining, by comparing the first distortion pattern to the second distortion pattern, that the first distortion pattern and the second distortion pattern correspond to a same movement event associated with the object moving in the environment, determining a timing offset between the first device and the second device based on information associated with the first distortion pattern and the second distortion pattern, and determining, based on the timing offset, temporal correspondences between data generated by the first device and data generated by the second device.
Public/Granted literature
- US20220082679A1 Time-synchronized Distributed Passive Captures Public/Granted day:2022-03-17
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